GM 3820638 Nos Differential Gear General

( Brand: Gm ), ( Manufacturer Part Number: 3820638 ), ( Part Type: Gear Motor ), ( Vintage Part: Yes )

Review GM General Motors Nos Oem Tooth Differential Side Gear fits CORVETTE 1956-70–2016

Introducing the 1956-1970 GM 3820638 Nos 16 Differential Gear for your classic Corvette. This essential component of your vehicle's drivetrain is meticulously engineered to provide superior performance and durability.

The 16-inch ring gear of this differential is designed to accommodate larger tires, perfect for those seeking enhanced traction and handling. The ring gear is made from high-strength steel, ensuring a robust and reliable connection to the differential housing.

The 3820638 Nos 16 Differential Gear set includes the pinion gear, which meshes with the ring gear to transmit engine power to the wheels. The pinion gear is precision-machined from robust materials, ensuring optimal tooth contact and minimal wear.

Moreover, this differential gear set boasts heavy-duty differential gears. These gears are manufactured to the highest standards to ensure smooth operation and extended life. Their robust design enables them to handle the power and torque demands of your classic Corvette.

Additionally, the differential gears are pre-lubed with a high-quality synthetic gear oil. This oil ensures that the gears are properly lubricated and protected from wear, corrosion, and contamination during installation and operation.

Installing the 1956-1970 GM 3820638 Nos 16 Differential Gear in your Corvette is a straightforward process. The kit includes all necessary hardware for a hassle-free installation. Additionally, the gears are inspected and tested before shipping to ensure they meet the highest standards of quality and performance.

In summary, the 1956-1970 GM 3820638 Nos 16 Differential Gear is an essential upgrade for your classic Corvette. Its heavy-duty design, high-strength materials, and precision manufacturing make it an ideal choice for those seeking enhanced performance and durability from their vintage vehicle.

Buying a GM 16-inch differential for a 1956-1970 Corvette can be a worthwhile investment for various reasons. Here are some pros and cons to consider before making a purchase.

1. Improved Performance: The upgraded 16-inch differential provides better torque capacity and improved handling compared to the standard 10-bolt differential. This can lead to better acceleration and overall performance.

2. Durability: The GM 16-inch differential is known for its durability and can handle high horsepower applications, making it a popular choice for enthusiasts looking to modify their Corvettes.

3. Customizability: The 16-inch differential comes with various options and upgrades, such as posi-traction, limited-slip, or even a 4.11:1 gear ratio, allowing you to customize your Corvette's performance to your preferences.

1. Cost: The cost of a new 16-inch differential can be significantly higher than that of a standard 10-bolt differential. This may be a deterrent for some Corvette owners with limited budgets.

2. Installation: Installing a 16-inch differential requires specialized tools and knowledge, which may add to the overall cost and complexity of the project. Additionally, some modifications to the car's suspension or drivetrain may be necessary to accommodate the larger differential.

3. Weight: The 16-inch differential is heavier than the standard 10-bolt differential, which can impact the Corvette's handling and fuel efficiency.

The decision to purchase a GM 16-inch differential for a 1956-1970 Corvette ultimately depends on your goals and budget. If you're looking to improve your Corvette's performance and durability, a 16-inch differential may be a worthy investment. However, if you're on a tight budget or prefer to keep your Corvette's stock configuration, a standard 10-bolt differential may be more suitable for your needs.

For Corvette enthusiasts looking to maximize their car's performance, a GM 16-inch differential is a solid investment. It provides better torque capacity, improved handling, and the ability to customize to your preferences. However, be prepared for the added cost, potential installation complexities, and increased weight. If you're unsure about the installation process or have any concerns, consider consulting a professional mechanic or Corvette specialist for guidance.

Details:

NOS OEM 1956-70 Corvette 16 Tooth differential side gear GM #: 3820638.

part #: 3820638 prices

• $20.00-$124.95

specifications othellodrivetrain:

• for models: Corvette
• for years: 1956-70-2016
• brand: Gm
• mpn: 3820638
• part type: Gear Motor
• vintage part: Yes

returns othellodrivetrain:

• policy: No Returns

shipping othellodrivetrain:

• type: Calculated
• class: Standard
• carrier: USPS
• cost: $11.40
• transit: 5-9 Days
• service: USPS Ground Advantage

payments othellodrivetrain:

• wallet: Apple-pay
• credit card: Discover
• other

general othellodrivetrain:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain

seller othellodrivetrain:

• # reviews: 979
• rating: 100.0%
• city: Auburn, Nebraska

offer othellodrivetrain:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• best offers: True
• started: July 3, 2025

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